Our purpose is to provide clear, reliable, and easy access to HEC-RAS user manuals and documentation, supporting engineers, students, and practitioners in effectively applying HEC-RAS for hydraulic and hydrologic analysis.

Purpose

Acknowledgement

The HEC-RAS manuals and documentation provided on this website were prepared by the U.S. Army Corps of Engineers, Hydrologic Engineering Center (HEC). These materials are in the public domain and are authorized for unlimited distribution.

All credit for the development of HEC-RAS and its documentation belongs to the U.S. Army Corps of Engineers. This site is an independent resource and is not an official USACE or HEC website.